Acoustic Love wave platform with PDMS microfluidic chip

This paper exhibits a microfluidic solution to allow Love wave acoustic oscillators working under highly viscous liquid environments. Attenuation caused by viscous coupling is limited by using a poly(dimethylsiloxane) (PDMS) chip bonded on the Love wave device. Liquid volume required for a measureme...

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Bibliographic Details
Published in:Sensors and actuators. A. Physical. 2008-03, Vol.142 (1), p.160-165
Main Authors: Raimbault, V., Rebière, D., Dejous, C., Guirardel, M., Conedera, V.
Format: Article
Language:English
Subjects:
Engineering Sciences
High viscosity
Love wave sensors
Micro and nanotechnologies
Microelectronics
PDMS
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Summary:This paper exhibits a microfluidic solution to allow Love wave acoustic oscillators working under highly viscous liquid environments. Attenuation caused by viscous coupling is limited by using a poly(dimethylsiloxane) (PDMS) chip bonded on the Love wave device. Liquid volume required for a measurement is thus minimized to the microliter order. Thanks to insertion losses decrease, the non-Newtonian behavior of silicone oils up to 30 Pa s can be observed in oscillator mode. Numerical simulations based on the transfer matrix method have been performed to modelize the sensor response.
ISSN:0924-4247
1873-3069
DOI:10.1016/j.sna.2007.05.026